Home
Class 11
PHYSICS
Assertion : For turbulent flow Reynolds ...

Assertion : For turbulent flow Reynolds number `R_(e)gt2000`.
Reason : For high value of Reynold number internal force is more effective than viscous force.

A

Both assertion and reason are true and the reason is the correct explanation of the assertion.

B

Both assertion and reason are true but reason is not the correct explanation of the assertion.

C

Assertion is true but reason is false.

D

Both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
a

Assertion and reason are true and the reason is the correct explanation of the assertion.
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    KUMAR PRAKASHAN|Exercise SECTION -C (Objective Questions) (VSQs) Fill in the Blank|9 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    KUMAR PRAKASHAN|Exercise SECTION -C (Objective Questions) (VSQs) Match Type Questions|6 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    KUMAR PRAKASHAN|Exercise SECTION - B Numerical From DARPAN Based On Textbook|17 Videos
  • MACHANICAL PROPERTIES OF SOLIDS

    KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos
  • MOTION IN A STRAIGHT LINE

    KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos

Similar Questions

Explore conceptually related problems

Deduce the formula of Reynolds number in the form of inertial force and viscous force .

What is the value of Reynolds number for unsteady flow ?

What is the value of Reynold's number for turbulent flow ?

What is the value of Reynolds number for streamline flow ?

Assertion:- For Reynolds number R_(e)gt2000m , the flow of fluid is turbulent. Reason:- Inertial forces are dominant compared to the viscous forces at such high Reynolds number.

Which of the ratio of forces represents the Reynolds number Re ?

Show that Reynolds number is dimensionless. R_(e)=(rhovd)/(eta)

Assertion : A body can be at rest even when it is under the action of may number of external forces Reason : Because vector sum of the all external forces is zero .

What is change in value of Reynolds number when fluid flow from broad tube to narrow tube ? [Tube is horizontal]

KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION -C (Objective Questions) (VSQs)
  1. Why tefllon is coated ,the angle of contact between oil and non -stick...

    Text Solution

    |

  2. Why raincoat does not wet in rain ?

    Text Solution

    |

  3. Water rises to a height of 20 mm in a capillary . If the radius of th...

    Text Solution

    |

  4. How the oil lamp produces light through a wick that is lit using a mat...

    Text Solution

    |

  5. Why the moisture is retained in soil when a farm is being plough ?

    Text Solution

    |

  6. Why it is better to wear cotton clothes in summer ?

    Text Solution

    |

  7. Why the refill of marker pen which is used to write on white board is ...

    Text Solution

    |

  8. Why does the water rise in a capillary tube Explain .

    Text Solution

    |

  9. Why does the mercury fall in a capillary tube ?

    Text Solution

    |

  10. A 20 cm long capillary tube is dipped in water The water rises upto 8 ...

    Text Solution

    |

  11. In incompressible flow the density of a fluid changes with time and po...

    Text Solution

    |

  12. Non -viscous flow can be a streamline.

    Text Solution

    |

  13. In a steady flow velocity of the fluid at each point remains identical...

    Text Solution

    |

  14. The Bernoulli equation can be considered to be a statement of the cons...

    Text Solution

    |

  15. The angle of contact between drop of water and material of raincoat is...

    Text Solution

    |

  16. Absence of roughness between two consecutive layers of fluid is the vi...

    Text Solution

    |

  17. If the weight of body is greater than the buoyant force of liquid then...

    Text Solution

    |

  18. Velocity of water at the depth in river is always slow.

    Text Solution

    |

  19. Assertion : For turbulent flow Reynolds number R(e)gt2000. Reason ...

    Text Solution

    |

  20. Assertion : A needle placed carefully placed on the surface of water m...

    Text Solution

    |